A cobporation



A. 0. H. EBERT.

MARGIN RELEASE.

APPLICATION men MAY 20, 1918.

Patented May 13, 1919.

QFFICE.

ALFRED O. :H. EBERT, OF WOODSTOCK, ILLINOIS, ASSIGNOE T0 WOODSTOCK TYPEWRITEE COMPANY, OF WOODSTOCK, ILLINOIS, A CORPORATION OF ILLINOIS.

MARGIN-RELEASE.

Specification of Letters Patent.

Patented May 13, 1919.

Application filed ma a0, 1918. Serial No. 235,620.

To all whom iii-mag; concern:

Be it known that I, ALFRED O. Ennn'r; a citizen of the United States, residing at Woodstock, in the county of 'McI-Ienry and State of Illinois, have invented certain new and useful Improvements in Margin-Releases, of which the followingis a specification This invention relates to typewriters, and more particularly to the letter and margin spacing means, and the principal object of the invention is to provide a new and improved construction by means of which it is possible to write in the margin of the sheet upon which the typewriter is writing, and more particularly in the left-hand margin.

The further object of the invention is to provide new and improved means for operating the margin release from both ends of the typewriter carriage.

The invention consists in. the novel construction, combination, and arrangement of the parts.

In the accompanying drawing- Figure 1 is a plan view of a portion of a typewriter mechanism .to which the present invention is applied.

Fig. 2 is a sectional 22 of Fig. 1.

Fig. 3 is a sectional 3--3 of Fig. 1; and

Fig. 4 is a rear elevation of a margin stop device with a stop therefor shown in section. In some typewriter constructions it is necessary to move the left-hand margin stop in, order to write in the left-hand margin and this involves the setting and resetting of the margin stopmechanism for each operation. In the present invention the lefthand margin stop in which it is set,.but by moving the rack the margin stop is released from the fixed stop on the typewriter frame to permit writing in the left-hand margin without interfering with the left-hand margin stop and without affecting its subsequent normal operation. Y

At the rear of a typewriter to which the present invention is applied there is a graduated bar 1, having teeth on opposite sides and pivotally mounted upon a longitudinal axis in; end plates 2 which form a part of the customary transversely movable typewriter carriage. At the rear of the bar 1 is view taken on line view taken on line into any other desired engagement.

may be kept in the place position it which presses it a rack 3 with teeth at the lower edge adapted to mesh with a pinion 4: attached to an 'escapement operating portions 10 and 11, respectively.

Attached to one of the levers 7 is one end of a spring 12, the other end of which is attached to a pin 13, and this spring tends to hold the rack 3 downwardly in engagement with its pinion 4:. By pressing the finger hold portions 10 or 11 of the levers 7 and 8, the rack is raised from engagement with its pinion.

Mounted on the bar 1 for sliding movement longitudinally thereof is a margin stop 14 which has an angular notch 15 in its lower edge and upstanding lateral ears 16. Pivoted in the ears 16 is a lever 17 having a bent extremity 18 to engage the teeth of the bar and having an operating-knob 19 at the other end which has a projection 20 extending through the lever forming a guide for a spring 21 which is interposed between the lever and the margin stop 14 so that the spring tends to press. the extremity 18 in engagement with the teeth ofthe bar 1. In order to move the margin stop along the bar, the lever 17 is depressed by means of the handle 19 against the ten sion of the spring 21, and the extremity 18 is then freefrom engagement so that the margin stop can beshifted along the Iliar X- tending below the margin stop 14: and up at the sides thereof is a stop member 22 mounted on pivots 23 which project from the sides of the member 14. This stop member 22 has an angular portion 24: adapted to be seated in the angular notch 15 and it has a projecting extremity 25 which normally extends at an angle below the lower side of the member 14- in which is held by means of a spring 26 downwardly holding the angular portion 24 in'the notch 15. In this position the extremity 25 is adapted to engage in. a pocket 27 of a stop 28 which is In order to raise the stop member 22 from engagement with the stop 28 a lateral ex tending tongue 29 is formed integral with the stop member 22, and this tongue extends over the rack 3 and is provided with an adjustable stop screw 30 which has a lock nut- 31 so that this screw can be adjusted and set for engagement with the "upper edgeof the 'rack 3. 'It will .be observed that the tremity of the stop member 22 can be engaging pocket of the stop 28 is inclined 'slightly'from the vertical so that "the/exr'eadilyrotated upwardly even though it is 1n engagement with the stop 28. p If desired, a separate handled arm 32 may be secured to the bar 1 so that it can bero-v tated independently of the rack 3 raising the screw, from engagement with the rack.

This, of course, will not aflect the position of the rack 3. The bar 1, however, is normally pressed in a direction to hold the screw 30 against the top of the rack by .means of an arm 33 and-a spring 34 attached thereto and to a suitable fixed portionof thecarriage frame. r p

g In operation it is obvious that the engagement of either of the-levers 7 or' 8 will raise the rack3 about 'its'pivots and that. thiswill move the tongue'29 upwardly causing; the stop member 22"to'be raised abou't'its.

pivots 23 against the tension of the spring '26 until the-extremity 25 of this member 4 abuts, or nearly abuts the lowers surface of vthe member 14. In this. position it will be clear ofenga'gement with the stop member 28 so that the margin stop, and in fact the carriagein' which the margin stop is mounted, may be moved in such a direction that it ,will be possible to write in the lefthand margin, or to the left ofthe position for which the margin stop'is set, i

I claim:- v 1. The combination with a margin stop having a movable pal t, and a bar on which .it'is mounted, of a pivotedrack, means for moving the rack, and means forming a connection between the stop and the rack for moving the said p rt of thestop when the rack'is rotated on its pivot.

2. The combination with a fixed bar and a margin stop adjustable thereon, of a pivoted escapement rack, means for moving the rack about itspivot, and an arm forming a part of and projecting from the margin stop and engaged by the rack when it is rotated.

'3. The combination with a margin stop bar, .of a pivoted rackyand amargin stop g adiustable upon the bar and including a movable part engaged andmoved by the rack when the latter is moved upon its pivot. 4. In a typewriter, the combination with a rotatable escapementmember, of an ad-' justable margin stop having a movable part, a fixed stopengaged by the margin stop part in one direction of movement, and. means formmg a' connection between the escapemargin stop ment member and the margin stop partfor releasing it from engagement with the fixed stop when the escapeinent member is rotated.

5.;The combination with an adjustable margin stop including a pivoted stop member, of a fixed detent engaged by the member in one direction of movement, an escapement rack movable to disengage it from the es capem'ent devices, and an engageable connection between the pivoted stop member and the rack for releasing themember from the fixed stop when the rack is disengaged. 6; In a typewriter, a fixed stop, an adj ustable margin stop having a pivoted member for engaging the fixed stop in one d'irection of movement, an es'capement rack movable upwardly to release it, and an arm extending from the pivoted member and engaged by the rack to move the member out'of engaging position with respect to the fixed stop;

7. In av typewriter, a fixed stop, an adjustable margin stop. including a pivoted member normallyin position to engage the fixed stop, an escapement rack raisable to release it,-and adjustable meansin connection with the said pivoted member engagedby the rack in=its releasing movement to move the pivoted member out ing the fixed stop.. p I

8. In a typewriter, a fixed stop, an adof a position engagjustable margin stop with a pivoted member normally in position to'engage the stop, the pivoted member having with an adjustable contact member thereon,

an -extending arm and a pivoted'rack movable to engage the contact member for raising the pivoted member from a-position'wherefit engages said Stop. d v

1 9. In a margin release for typewriters a stop fixed to the frame,and an adjustable mounted on the carriage and including a pivoted member normally in ition to engage the fixed stop, the member having a pro ecting arm by means of which it may be moved upwardlyout of-position -to engage the fixed stop.

10. In a -margin release, an adjustable margin stop having a pivoted stop member movable from an engaglng position with an arm ,projecting' therefrom, an engaging screw threaded in the end of the arm, and a pivoted rack movable upwardly to contact ire spring in the direction of the margin stop so that it will pass over the fixed stop.

12. A releasable margin stop comprising a member longitudinally adjustable for varying the margin and a stop member pivoted thereto, the outer end of which projects from the adjustable member and has an arm extending therefrom, a spring interposed between the stop member and the adjustable member, and an adjustable engagement device in the end of the arm by means of which the stop member is rotated against the tension of said spring.

13. In a. margin stop, a bar and housing slida'ble thereon having an angular notch in its lower edge, means for adjusting the posi tion of the housing along the bar, a stop member pivoted to the housing having an angular edge to engage the notch of the housing and with the stop each normally disposed at a distance from the. housing, a spring tending to hold this member in engagement with the notch of the housing, and an arm projecting from the stopmember engageable at its outer end to raise the member against the tension of its spring thereby moving it out of engagement with the said notch.

14. In a typewriter, the combination with a toothed bar, of a margin stop mounted thereon comprising an ad ustment lever for engaging the teeth of the bar and a pivoted stop member one end of which extends at an angle from the margin stop with a spring tending normally to hold it in such position, an arm with an adjustable engagement pin threaded in the end of the arm, an escapement ra-ck pivoted on an axis substantially parallel with the bar on which the margin stop is adjustable, theengagement pin being engaged by the rack. when it is moved on its pivots, and means at each end of the rack for rotating it upon its pivots thereby moving the pivoted stop member against its spring.

In testimony whereof I have signed my name to this specification on this 15th day of May A. D. 1918.

ALFRED O. H. EBERT. 

